elementAt method
Returns the single element that satisfies test
.
Returns the index
th element.
Implementation
// TODO(jakobr): Implement once Dart 2 corelib changes have landed.
//E singleWhere(bool test(E element), {E orElse()}) =>
// _wrappedList.singleWhere(test, orElse: orElse);
/// Returns the [index]th element.
@override
E elementAt(int index) => _wrappedList.elementAt(index);